Navigational calculating device
US4347669A · kind A · utility
1Cited by
10References
14Claims
0Family size
Inventor
Key dates
| Filing date | Jun 19, 1980 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Jun 19, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/566
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure relates to a new navigational calculating device which provides a mechanical means of solving position finding problems by solving a plane right triangle. It is an alternative to traverse tables, trigonometric formulas, and chart plotting for determining a dead reckoning position. It is particularly useful for small water-going craft in which conventional methods of navigation are difficult or impractical. A plotting board may be used to provide a visual application of calculation results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.